"Word in the ear" is a commonly used phrase meaning to tell someone something in confidence or secretly. There are several synonyms for this phrase, such as "whisper", "confide", "murmur", "share confidentially", "tell privately", and "reveal in secrecy". All these synonyms indicate the action of conveying a message privately or discreetly to someone's ear. Sometimes, a person may use this phrase to indicate gossip or rumors and may use words like "tip off", "leak", "blow the whistle", or "spread the news". Regardless of the phrase used, the idea is to keep things between the speaker and listener without disclosing to others.